Fly-exit device



E. LYNCH FLY EXIT DEVICE oct. 20,1925. l-.sssnuz Filed July 3, 1924 2 Sheets-Sheet. 1

E. LYNCH FLY EXIT DEVICE Och-20,1925.

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Filed July, 1924 mm R mm a L a r H T L M n y mf@ z B a MKII Hi@ k Qin T N. N

Patented Get. 20, 1925.

UNITED sri-iras ELIZABETH LYNCH, OF MINNEAPOLIS, MINNESOTA.

FLY-EXIT DEVICE.

Application led July 3, 1924. Serial No. 724,080.

To all whom t may concern:

Be it known that ELIZABETH LYNCH, citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Fly-Exit Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 310 skilled in the art to which it appertains to make and use the same.

This invention relates to a fly exit device, or to a device for allowing iies which gather on the pane of a window to find their way to the exterior of the building.

As is well known flies gather on the inside of window-panes in buildings of various kinds, in their attempt to leave the building. Being unable to get through the glass, they remain on the pane for a long time, crawling over and soiling the same.

It is an object of this device to provide a simple and eiiicient device which can either be attached to a standard window or be formed in the window when made, by means of which the flies can readily pass to the eX- terior of the window but will be prevented from again entering the building. x It is a further object of the invention to "0 provide such a device comprising a casing having a screen wall with outwardly opening holes therethrough, which casing has an entrance passage from the inside of the windowpa-ne.

It is more specifically an object of the invention to provide such a device, having a casing as above set forth with an entrance passage from the inside of the pane, which passage is provided with a closing means, '20 so that the same can be closed in case of a storm or rain.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings, in which like reference characters refer to the same parts throughout the different views, and in which l Fig. 1 is a view in front elevation of the "0 inside portion of the window showing the device applied thereto; and

Fig. 2 is a vertical section through Fig. l on line 2-2 as indicated by the arrow, the

upper sash on the window also being shown;

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Fig. 3 is a top vplan view of Fig. l; and

Fig. 4 is a partition view of the windowpane as modified for the device; and

Fig. 5 is a view in front elevation of the window showing a modified form of the device with portion brolen away and other parts shown in vertical section; and

Fig. 6 is top plan view of Fig. 5; and

F ig. 7 is a vertical section through Fig. 5 on line 7 7 as indicated by the arrow, the upper section and a portion of the window casing also being shown.

Referring to the drawings, particularly Figs. l to 4, a standard form of window is shown comprising the usual pane l and sash frame 2. In applying the present invention to such a window the pane l has an opening la cut therein in its top edge and a easing comprising a rear side 8 and a front side 4 is clamped to said pane surrounding said opening la by clamping bolts 5, passing through said pane and the portions 3 and.'4. The outer casing portion 4 has an opening cut therein in which is inserted a screen 6, said screen bulging outwardly as shown in Fig. 2 so that a chamber is formed having a screen wall. Round holes 6a are formed through this screen, the wires of the screen preferably being arranged to project outwardly adjacent said holes so that a somewhat conicalopening is formed through which a iiy can readily pass outwardly but through which he cannot or will not pass inwardly. The screen 6 is disposed in alinement with the opening of lau to the pane. The interior sections 3 has a portion thereof formed as a door 3a, hinged by the hinges 7 to the upper portion of member 3.

In operation the device arranged as described will have the door 32 open as indicated in Fig. 2, the hinges 7 being sufficiently stiff to hold the door in this position. The iiies which gather on the inside of the pane l will crawl upward thereon as usual and pass into the chamber of said casing. After they are in the said chamber they will crawl about the screen 6 and pass out through the opening 6a. When once out of the chamber they will not pass inwardly. A quick exit is thus furnished for the iiies and the same are prevented from remaining on the window and soiling the same. If a storm or rain should occur the door 3a can be closed to prevent the windor rain entering the building through the opening in the pane. Said door can also be kept closed in cold weather.

In the embodiment of the invention shown in Figs. 5 to 7 a window is shown having a pane 10 and the sash frame 1.1. A chamber 12 is formed in the body of the top frame 11, preferably at the center thereof, and downwardly extending passages 13 are formed extending from this chamber to the inside of the pane 10. The outer sides of said passages being substantially flush with the inside surface of the pane. Chamber 12 extends to the outside ofthe sash 11 and a screen let is placed therein, having its ends received in the chamber and its top and bottom sides lying against the top and bottom of said chamber, the outer side of the screen being substantially flush with the outer side of sash 11. Plates 15 are mounted on lthe outside ofthe sash and are provided with elongated longitudinal extending slots through which pass the headed screws 16. Plates 15 can be slid endwise to Voverlap the ends of the screen 111 and hold the same in position. rlhe screen 14 has a plurality of `holes 111 formed therein which preferably are formed to have their sides projecting outwardlyr at a somewhat conical shape so that a Hy can readily crawl outwardly therethru but will not crawl inwardly therethru.

In lthe operation of the device shown in Figs. 5 to 7, the flies which collect Von the inside surface of pane 10 will crawl upwardly thereon and pass through the passages 13 in the chamber 12. The flies passing into chamber 12 will then crawl on screen 14 and pass outwardly thereof through the open-ings 14a. Flies thus quickly reach the exterior of the window but cannot pass backA o the inside thereof and are thus prevented from remaining on the window and soiling the same. If it is desired to remove the screen 11i this can be readily done by sliding the plates 15 longitudinally and lifting the screen out of the chamber 12. Such a removal may be desirable if the screen should become rusty or soiled.

From the above description it will be seen that applicant has provided very simple and eflicient means for quickly removing the flies from the window pane and disposing of them. The device can easily and quickly be installed either on a standard window in operation or by being placed on the window when the same is manufactured. Parts of the device are very few, simple and inexpensive. lVhen once installed the device needs little or no attention.

It will, of course, be undestood that various changes may be made in the form, details and arrangement and proportions of the parts without departing from the scope of applicants invention, which, generally stated, consists in a device capable of carrying out the objects above set forth, in the manner shown and described and set forth in the appended claims.

That is claimed is:

l. In combination with a window and the pane thereof, a device permitting the exit of a ily or other insect comprising a cas ing adapted to be secured adjacent the top of said window` said casing having a portion at the outside and inside of said pane, said -outer portion having a chamber with a screen wall therein, which wall has an outwardly extending opening therethrough adapted to permit the exit but not the en` trance of a fly or other insect, said pane having an opening therethrough communieating with said chamber and a hinged door on the portion of said casing at the interior side of said pane adapted to close the openingtherethrough.

2. In a window structure comprising a sash and a pane therein, a casing at the outer side of said pane and at the upper edge of said sash and pane having an outer screen wall with an opening therethrough constructed and arranged to permit the exit of, but to prevent the entrance of a Hy or similar insect, said structure having a pas sage therethrough from the inside of said pane into said casing formed by a recess cut in the top edge of said pane so that the tly may crawl from the inside of said pane into and out of said casing, and means at the inside of the pane for opening and closing` said passage.

In testimony whereof I aiiix my signature.

ELIZAB ETH LY N CH 

